chore: cleanup our defined python requirements (#180)

Author: erunion

packages/python/requirements.txt

@@ -1,24 +1,4 @@
-appdirs==1.4.4
-attrs==20.1.0
 black==20.8b1
-certifi==2020.6.20
-chardet==3.0.4
-click==7.1.2
-idna==2.10
-importlib-metadata==1.7.0
-iniconfig==1.0.1
-more-itertools==8.5.0
-packaging==20.4
-pathspec==0.8.0
-pluggy==0.13.1
-py==1.9.0
-pyparsing==2.4.7
 pytest==6.2.1
-regex==2020.7.14
 requests==2.24.0
-six==1.15.0
-toml==0.10.1
-typed-ast==1.4.1
-urllib3==1.25.10
 Werkzeug==1.0.1
-zipp==3.1.0